Select 1 core from 2/4/8 cores

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ass0

Joined: 31 Dec 2008
Posts: 518
Location: ( . Y . )

ass0 05 Jul 2010, 10:05

Is it posible to select a core from a multicore cpu?
Consider the following scenario:

(# prefix means core)
(t prefix means task)
(| means timeline)
(· means space xD)

#1··········#2
|·············|
t1············|
t2···········t3
t4············|
|············t5

I know this seems a simple multithreading program, but i wonder if it's possible to select a (physical) core to achieve a task in kernel or even in user mode.

Of course i'm googlin,yahooin but i didn't found nothing (not even at msdn.microsoft.com =p).

_________________

Nombre: Aquiles Castro.
Location2: about:robots

05 Jul 2010, 10:05

revolution
When all else fails, read the source

Joined: 24 Aug 2004
Posts: 20759
Location: In your JS exploiting you and your system

revolution 05 Jul 2010, 10:10

SetThreadAffinityMask
SetProcessAffinityMask

05 Jul 2010, 10:10

ass0

Joined: 31 Dec 2008
Posts: 518
Location: ( . Y . )

ass0 05 Jul 2010, 10:14

WOW!!, thank you revolution, you rock my world. xD

_________________

Nombre: Aquiles Castro.
Location2: about:robots

05 Jul 2010, 10:14

Tyler

Joined: 19 Nov 2009
Posts: 1215
Location: NC, USA

Tyler 05 Jul 2010, 11:14

That's what he/she/it said! Laughing

05 Jul 2010, 11:14

ass0

Joined: 31 Dec 2008
Posts: 518
Location: ( . Y . )

ass0 05 Jul 2010, 11:33

wut 'r u talkin' about?
you rock my world == you are awesome!

_________________

Nombre: Aquiles Castro.
Location2: about:robots

05 Jul 2010, 11:33

Tyler

Joined: 19 Nov 2009
Posts: 1215
Location: NC, USA

Tyler 05 Jul 2010, 11:38

It has many meanings.

05 Jul 2010, 11:38

revolution
When all else fails, read the source

Joined: 24 Aug 2004
Posts: 20759
Location: In your JS exploiting you and your system

revolution 05 Jul 2010, 13:46

I will just assume it has the least derogatory and most respectful meaning.

ass0: You're welcome. But I would have thought that ( . Y . ) rocks your world. Wink

05 Jul 2010, 13:46

ouadji

Joined: 24 Dec 2008
Posts: 1080
Location: Belgium

ouadji 05 Jul 2010, 22:01

KeSetSystemAffinityThread(Ex)
KeRevertToUserAffinityThread(Ex)
http://msdn.microsoft.com/en-us/library/ff553267%28VS.85%29.aspx
Both work very well without any problems. (XP Pro sp3 32bits)

_________________
I am not young enough to know everything (Oscar Wilde)-

05 Jul 2010, 22:01

ass0

Joined: 31 Dec 2008
Posts: 518
Location: ( . Y . )

ass0 05 Jul 2010, 23:28

Thank you ouadji, you rock my world too. xD

_________________

Nombre: Aquiles Castro.
Location2: about:robots

05 Jul 2010, 23:28

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